The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Dec. 23, 2022
Mayekawa Mfg. Co., Ltd., Tokyo, JP;
Choiku Yoshikawa, Tokyo, JP;
Toshio Kutsuna, Tokyo, JP;
Nelson Mugabi, Tokyo, JP;
Daiki Kayashima, Tokyo, JP;
Nobuo Oosuga, Tokyo, JP;
MAYEKAWA MFG. CO., LTD., Tokyo, JP;
Abstract
A defrost system includes a thermosiphon defrost circuit that is provided by being branched from a circulation line, in which, at the time of defrosting, a COrefrigerant staying inside a fin-tube heat exchanger repeats a two-phase change of a gaseous form and reliquefaction, and which forms a COcirculation path together with the fin-tube heat exchanger; electromagnetic opening/closing valves that are closed at the time of defrosting and set the COcirculation path to a closed circuit; and a first electric heater arranged above the thermosiphon defrost circuit so as to be adjacent to the thermosiphon defrost circuit, and naturally circulates the COrefrigerant in the closed circuit at the time of defrosting.